Topological coindices of phytochemicals examined for COVID-19 therapy

Abstract

A molecular descriptor (or topological index) is a numerical value that is utilized in describing the molecular structure of a compound and has been widely used to study many physicochemical properties in several QSPR/QSAR studies. Researchers used the topological indices in drug designing to create a high-quality design of physical structure and bio-organic and chemical properties of the existing and new drugs. This article discovers and investigates the M- polynomials corresponding to topological coindices. Maple graphics are used to illustrate the three dimensional molecular structures in a different way and these illustrations are useful in structural chemistry. A few degree-based topological coindices are considered including the first and second Zagreb coindices, forgotten topological coindex, general Randic and inverse Randic coindices, symmetric division coindex, harmonic coindex, inverse sum indeg coindex and augmented zagreb coindex.